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4358668 |
Heater with reinforcing strate
A flat, normally horizontal electric resistance blanket heater comprising a thin, fragile elongate resistance element on one surface of and carried by a thin, flexible sheet of dielectric material,...
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4354096 |
Heating elements and thermostats for use in the breeding of fish for aquaria
The present invention relates to a heating element usable in particular in aquaria, characterized in that it is constituted by an electrical element proper, coated with a moldable and waterproof...
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4352707 |
Composite repair apparatus
A composite repair device including a plurality of resistive heating zones, each having independent temperature and rate of temperature rise controls, to compensate for the greater heat loss at the...
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4348584 |
Flexible heating elements and processes for the production thereof
A flexible heating element comprises at least two flexible electrical conductors spaced apart by a PTC material, an amorphous highly conductive rubber compatible with the PTC material and adhered...
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4346286 |
Temperature controlled electrical power supply apparatus
Temperature controlled electrical power supply apparatus for heating carpet-joining tape of the type having a conducting foil adapted to be heated by electric current to melt adhesive thereon...
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4346277 |
Packaged electrical heating element
An elongate flexible package (10) adapted to contain and either enhance or contribute to the control of the heating efficiency of an elongate heating element contained therein and having sufficient...
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4334148 |
PTC Heaters
A self-regulating electrical heater comprised of a material which exhibits a positive temperature coefficient of resistance. The heater has a generally rectangular cross-section which provides...
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4330704 |
Electrical devices comprising conductive polymers
An improved means of making an electrical connection to a laminar electrode which is in contact with a conductive polymer element. A mat of conductive filaments is placed between the electrode and...
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4329569 |
Resilient snap-on electric heating jacket for tubular objects
A resilient snap-on electric heating jacket for heating tubular objects includes a thin sheet of flexible plastic material constituting a radially internal curved surface adapted to engage the...
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4320286 |
Heater element
There is provided a flexible electric heater element and a process for making such a heater element. The flattened ends of two lead wires are disposed on a first layer of material which includes a...
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4314144 |
Thermostat mounting arrangement for electric heating appliance
An elongate flexible package (10) adapted to contain and either enhance or contribute to the control of the heating efficiency of an elongate heating element contained therein and having sufficient...
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4314145 |
Electrical devices containing PTC elements
The invention relates to novel electrical devices which are useful for example as heaters and temperature sensors, and which comprise at least two electrodes, at least one PTC element, at least one...
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4309596 |
Flexible self-limiting heating cable
A heating cable having spaced helically wound conductor wires separated by a layer of positive temperature coefficient material which functions as a self-limiting heating element. At least one of...
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4308448 |
Heating cable with a specific heating capacity
A heater cable with coaxial inner and outer conductors and an intermediately disposed resistance heater. The heater is spaced from the inner conductor by radially extending alternating conductive...
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4307290 |
Electric heating tapes
A heating tape comprising a pair of elongate electrodes embedded in a body of electrically conductive material wherein the highest current density in the effective current path between the...
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4303074 |
Method for applying therapeutic heat
A method for applying therapeutic heat by a therapeutic heating pad which is not hot to the touch provides substantial infrared radiation to a user. Accordingly it can be used for extended periods...
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4293763 |
Electrically insulated resistance heater
A thin, flat, multi-laminate resistance heater structure including a pair of spaced laminates of dielectric material with opposing inner surfaces, an elongate resistance element arranged between...
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4284451 |
Tire repair method and apparatus
A method of tire repair in which flexible heating pads are applied to both the inside and outside of a patch area of a tire casing, and held in place under equalized pressure against the patch area...
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4281238 |
Tubular jacket heater
A tubular jacket heater having a C-wise radial cross section with an aperture extending in a parallel direction to the axis is proposed which is used to envelop and preheat a tubular lamp used, for...
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4281298 |
Flexural transducer
A flexural electromechanical transducer composed of a constant-modulus alloy material and a piezoelectric ceramic material having a high electromechanical coupling coefficient. In the transducer,...
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4279255 |
Localized body heat applicator device
A portable therapeutic heating device is provided that may be readily worn and transported by a user. A flexible heating unit is attached to a body part and is capable of raising the skin...
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4277673 |
Electrically conductive self-regulating article
The method of manufacturing, composition and product described herein utilize highly electrically resistive carbon black alone or with low resistivity carbon black to form a self-limiting...
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4272671 |
Temperature control system for electric surface heater
A temperature control system for electric surface heater of piled layers of a heating element across which a commercial AC source current is fed and a thermosensitive electrode opposing the element...
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4272673 |
Heating element
A heating element is comprised of [A] a shaped, electrically insulating substrate, said substrate including a reinforced polyimide composite, [B] a continuous, electric resistor element in...
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4271350 |
Blanket wire utilizing positive temperature coefficient resistance heater
A heating element for use in an electric blanket or the like including conductors spaced apart in a positive temperature coefficient (PTC) material which serves as a self-limiting heater. The...
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4261364 |
Electric warm compress for ophthalmic treatment
A portable surgical compress heating device is provided. The device includes a thermo-electric element encapsulated within a housing which is placed over the compress to be heated. Conductors lead...
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4254326 |
Electrical heater apparatus
An expansion joint for metallic foil strip heaters encasing resistive heating elements comprised of a bend formed in the metallic foil strips. The expansion joint is formed by use of a tool for...
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4250397 |
Heating element and methods of manufacturing therefor
The heating element includes a flexible graphite fiber-loaded impregnated paper saturated with a binder to ensure and maintain intimate electrical contact between the graphite fibers. In one form,...
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4250400 |
Flexible temperature self regulating heating cable
Electrically parallel but positionally serial, helically wound segments of heating wire in a cable are each controlled by a chip (thermistor) and are connected to the cable proper by wrapping...
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4250398 |
Solid state electrically conductive laminate
A unitary, composite laminated article comprises an electrically insulating top layer and an electrically insulating bottom layer. Applied to the inner surfaces of each of these layers is a barrier...
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4247756 |
Heated floor mat
A heated rubber mat comprising upper and lower rubber panels and an intervening carbon-loaded electrically resistive rubber heating element. All are vulcanized together to form a unitary mat...
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4245149 |
Heating system for chairs
The invention relates to a heating element for a heated chair which can be used as a covering material for the heated chair or which can be laid under the covering material or which can be draped...
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4242573 |
Water immersible heater
A heater immersible in liquids such as water suitable for water beds and a method for producing the heater are disclosed. The heater includes two-spaced apart metallic electrodes interconnected by...
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4233492 |
Water bed with heater
The combination of a water filled flotation bed mattress with a filler neck and an elongate flexible cord-like heater structure comprising an elongate power supply cord section with inside and...
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4223209 |
Article having heating elements comprising conductive polymers capable of dimensional change
The invention relates to heating elements comprising conductive polymers which are capable of undergoing a change in dimension. The heating elements comprise a laminar member composed of a...
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4203198 |
Method of construction of electrical heating panels
A heating panel array is of a "sandwich" configuration and employs a serpentine resistive array fabricated from a metal foil and disposed between two sheets of fiber glass cloth, all of which are...
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4204110 |
Decorative personal electric heating appliance
A decorative personal electric heating appliance has an exterior covering in the form of a stuffed animal, doll, novelty item, etc. having a predetermined appearance, texture or feel which is...
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4201218 |
Therapeutic heat application
A portable heating device includes an envelope made by heat-sealing the edges of two flexible polymeric films, and a heat source within the envelope including, in one embodiment, a ribbon of...
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4197449 |
Flexible electrical heater
An electrical resistance heater includes a pliable thermally insulative base grooved in a major surface thereof and a flexible electrical resistance heating wire fitted within the groove. The...
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4194536 |
Composite tubing product
Elongate, deformable, composite tubing for use in maintaining or controlling the temperature of a fluid conveyed therethrough comprising one or more tubular fluid conveyance lines or one or more...
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4188276 |
Voltage stable positive temperature coefficient of resistance crosslinked compositions
The voltage stability of crosslinked compositions of fluorocarbon polymers and conductive carbon black that exhibit a positive temperature coefficient of resistance can be improved by incorporating...
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4186294 |
Radiant therapeutic heater
A therapeutic heating pad which is not hot to the touch provides substantial infrared radiation to a user. Accordingly it can be used for extended periods without feeling uncomfortable to the skin,...
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4177446 |
Heating elements comprising conductive polymers capable of dimensional change
The invention relates to heating elements comprising conductive polymers which are capable of undergoing a change in dimension. The heating elements comprise a laminar member composed of a...
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4163896 |
Wet dressing heating system
A heating system for dressings comprising a housing having a pair of opposed heating elements. The housing may be opened to place the dressings intermediate the heating elements, and may be closed...
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4162393 |
Electric heating mattress
An electric mattress and subcombinations characterized by a thick fire-retardant foam rubber pad overlying one or more heating pads with a plurality of separately controllable heating zones.
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4158078 |
Heat strip or panel
A film of electroconductive particles is impregnated into a glass fiber mat and sandwiched between insulating protecting layers and connectable to source of electrical power so that the entire...
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4149066 |
Temperature controlled flexible electric heating panel
A sheet-like thin flexible heat-emitting surface layer and a coextensive thin flexible serpentine heat-sensing layer are overlayed by thin flexible synthetic plastic sheets which are sealed...
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4140893 |
Ball warming apparatus and methods of constructing and utilizing same
A ball warming apparatus adapted to completely and effectively heat a cold ball, particularly a bowling ball, to a desirable room temperature. The apparatus may be adapted for selective stationary...
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4139763 |
Blanket heater with temperature control means
An electric resistance heater engageable with work to be heated including a work-engaging heater structure of minor thermal mass per unit area and including an elongate primary heating element...
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4131788 |
Electric heater
An electrical heater for clamping round a body to be heated comprises a sheet-like elongate heating element, a housing member against which the element is located, and a continuous band of flexible...
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